Alien Youth is the fourth album released by the Christian rock band Skillet. Developing their sound into hard-hitting industrial rock, it was released August 28, 2001 through Ardent Records. This was the first Skillet album to include guitarist Ben Kasica, replacing Kevin Haaland. Kasica joined Skillet late in the recording process for the album, only recording guitars on "Earth Invasion". It peaked at No. 141 on the Billboard 200 and No. 16 on The Australian Christian Albums Chart.